H1N1 Influenza Liz Ritchie, M.S. Risk Communication Analyst Office of Public Health Preparedness A couple housekeeping things… Welcome! My presentation = 20 minutes. Your questions = 10 minutes. A little about me. This might be our first meeting, but shouldn’t be the last.
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Liz Ritchie, M.S.
Risk Communication Analyst
Office of Public Health Preparedness
1918: Influenza A (H1N1), severe, killed 20 million
1957: Influenza A (H2N2), moderate, killed 70,000
1968: Influenza A (H3N2), moderate, killed 34,000
2009: Influenza A (H1N1), mild, killed ?
Strong potential for animal infection spreading to humans (zoonosis).Some History
99% of Influenza-Like Illness (ILI) = this strain
Michigan schools closed = 73
Michigan ILI (October 25-31) = 59,629
Michigan H1N1-related Deaths = ~17
48 U.S. states reporting “widespread activity”
Global: over 441,661 cases with 5712 deaths… < 1%
Avian Influenza A (H5N1)
widely circulating since 2003
442 cases with 262 deaths… 59%
Centers for Disease Control and Prevention
World Health Organization